PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8428Valve,gate

Flowserve Corporation Div Flowserve Us Inc · NSN 4820-00-889-2357 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-889-2357 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-889-2357. Primary manufacturer part number: 8428.
Features
  • Valve,gate — FSC 4820
  • Maximum Operating Temp and Media for Which Designed: 670.0 FAHRENHEIT WATER, FRESH DEGF
  • Reference Number Differentiating Characteristics: SELECTED AND TESTED IAW NUCLEAR PROPULSION PLANT SYSTEMS
  • Operating Pressure and Type: 2500.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
  • Material: NICKEL ALLOY BODY
  • Criticality Code Justification: ZZZY
  • Bonnet Type: OUTSIDE SCREW-YOKE
  • Features Provided: BONNET PACKING
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Body construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-00-889-2357, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Corporation Div Flowserve Us Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-889-2357
Primary Part Number8428
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFlowserve Corporation Div Flowserve Us Inc
StatusACTIVE
Maximum Operating Temp and Media for Which Designed670.0 FAHRENHEIT WATER, FRESH DEGF
Reference Number Differentiating CharacteristicsSELECTED AND TESTED IAW NUCLEAR PROPULSION PLANT SYSTEMS
Operating Pressure and Type2500.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
MaterialNICKEL ALLOY BODY
Criticality Code JustificationZZZY
Bonnet TypeOUTSIDE SCREW-YOKE
Features ProvidedBONNET PACKING
Stem TypeRISING
Valve Operation MethodMANUAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5340-00-065-51108224A0632-1A INTERCHANGEABLE
Standoff,threaded,spacing
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
6530-00-408-44258428 INTERCHANGEABLE
Specimenkit Urine
Bard C R Inc Bard Vascular Systems Div
6145-00-508-47098770496 INTERCHANGEABLE
Cable,power,electrical
Army, United States Department of the Dba Watervliet Arsenal Div Business Development
8115-00-576-84288428 INTERCHANGEABLE
Box,shipping
Connecticut Container Corp. Dba Connecticut Container Corp
5935-00-655-17998491368 INTERCHANGEABLE
Connector,plug,electrical
Us Army Aviation and Missile Command
4030-00-785-442473893258 INTERCHANGEABLE
Rod,anchor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5930-01-177-037208428 INTERCHANGEABLE
Switch Assembly
Electro Scientific Industries Inc
4820-01-406-316884-28 INTERCHANGEABLE
Valve,bleeder,hydraulic System
Goodrich Corporation
Cross-Reference Index
Part NumberManufacturer
8428 Flowserve Corporation Div Flowserve Us Inc (USA)
820-4383568 Naval Ship Systems Command (USA)
Related Parts
5340-00-065-5110INTERCHANGEABLE
STANDOFF,THREADED,SPACING
8224A0632-1A
6530-00-408-4425INTERCHANGEABLE
SPECIMENKIT URINE
8428
6145-00-508-4709INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
8770496
8115-00-576-8428INTERCHANGEABLE
BOX,SHIPPING
8428
5935-00-655-1799INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
8491368
4030-00-785-4424INTERCHANGEABLE
ROD,ANCHOR
73893258
5930-01-177-0372INTERCHANGEABLE
SWITCH ASSEMBLY
08428
4820-01-406-3168INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
84-28

Frequently Asked Questions

What is NSN 4820-00-889-2357?

NSN 4820-00-889-2357 is a Valve,gate, manufactured by Flowserve Corporation Div Flowserve Us Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-889-2357?

NSN 4820-00-889-2357 has 2 cross-referenced part numbers: 8428 (Flowserve Corporation Div Flowserve Us Inc), 820-4383568 (Naval Ship Systems Command).

What NSN replaces 4820-00-889-2357?

There are 8 known substitutes for 4820-00-889-2357: 5340-00-065-5110, 6530-00-408-4425, 6145-00-508-4709 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8428?

Key specifications for 8428: Special Features: 1ST END PIPE SIZE 4 IN. IN; Maximum Operating Temp and Media for Which Designed: 670.0 FAHRENHEIT WATER, FRESH DEGF; Reference Number Differentiating Characteristics: SELECTED AND TESTED IAW NUCLEAR PROPULSION PLANT SYSTEMS; Operating Pressure and Type: 2500.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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